Oscillatory stability analysis using real-time measured data

Low-frequency oscillations are becoming the major concern in system planning and operation of the Taiwan power system. With the developed dynamic performance monitoring system, oscillations could be detected simultaneously throughout the system. An extensive spectrum analysis based on real-time meas...

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Bibliographic Details
Published in:IEEE transactions on power systems 1993-08, Vol.8 (3), p.823-829
Main Authors: Chang, C.-L., Liu, A.-S., Huang, C.-T.
Format: Article
Language:English
Subjects:
240100 - Power Systems- (1990-)
Applied sciences
Centralized control
Communication system control
Damping
Data acquisition
DATA ACQUISITION SYSTEMS
Disturbances. Regulation. Protection
Electrical engineering. Electrical power engineering
Electrical power engineering
ENERGY SYSTEMS
Exact sciences and technology
Fourier transforms
Frequency estimation
Monitoring
Nuclear power generation
OSCILLATIONS
Power networks and lines
POWER SYSTEMS
POWER TRANSMISSION AND DISTRIBUTION
REAL TIME SYSTEMS
SENSITIVITY ANALYSIS
STABILITY
Stability analysis
Substations
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Summary:Low-frequency oscillations are becoming the major concern in system planning and operation of the Taiwan power system. With the developed dynamic performance monitoring system, oscillations could be detected simultaneously throughout the system. An extensive spectrum analysis based on real-time measurements is presented. By choosing proper frequency transformation parameters, features of oscillation modes of the system swing and their changes in different system operating conditions are studied. Damping ratios of various oscillation events are estimated and compared with those obtained from eigenvalue analysis.< >
ISSN:0885-8950
1558-0679
DOI:10.1109/59.260922